Potentially carcinogenic cyclopenta[a]phenanthrenes (1,2-cyclopentenophenanthrenes). Part II. Derivatives containing further unsaturation in ring D
作者:M. M. Coombs
DOI:10.1039/j39660000963
日期:——
the Δ15– 17H-compound (A), but at 100° the Δ16– 15H-isomer was formed. Base-catalysed condensation of (A) with acetone and aryl aldehydes yielded 17-substituted-methylene derivatives. The chemical shifts of protones attached to ring D in these compounds are listed.
通过格氏反应从相应的15,16-二氢-17-酮制备了取代的17-甲基-15 H-环戊[ a ]菲,并将其还原为Diels烃的类似物。通过Witting反应获得15,16-二氢-17-亚甲基衍生物(未取代)。消除从17甲苯p在170 -sulphonyloxy化合物°得到Δ 15 - 17 ħ -化合物(A),但在100℃的Δ 16 - 15 ħ形成异构体。(A)与丙酮和芳基醛的碱催化缩合产生17-取代的亚甲基衍生物。列出了这些化合物中连接在环D上的质子的化学位移。